In general, the organization of genes in bacteria is different from that in eukaryotes. In E
coli, approximately 27 percent of all genes are organized into contiguous, functionally related units containing multiple genes under coordinate control that are transcribed as a single unit. Such contiguous gene families are called ________.
A) operons
B) pseudogenes
C) contigs
D) proteomes
E) transcriptomes
A
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Mycorrhizal association with plant roots is best described as:
A. detrimental to the roots B. only a temporary association dependent on water uptake C. a symbiotic relationship between the plant and certain bacteria D. a fungus root interrelationship E. a kind of fungal parasite on plant roots
Which group of organisms will have a coelom and a body that is segmented?
a. Cnidaria b. Annelids c. Planarians d. Porifera e. Platyhelminthes
Which of the following is a source of genetic variation in a population caused by epistatic interactions between genes?
A) Additive genetic variance B) Dominance variance C) General environmental effects D) Interaction variance E) Maternal effect
The existence of a separate set of enzymes and DNA molecules in mitochondria and chloroplasts
provide support for serial endosymbiosis. __________________Indicate whether the statement is true or false.